123795560

素因数分解:

$2^3\times 5^1\times 7^4\times {\mathrm{1289}}^1$

素因数の和:1328

約数の個数: 80

約数和(自身を含む): 325196100

約数和(自身を除く): 201400540

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 343, 392, 490, 686, 980, 1289, 1372, 1715, 1960, 2401, 2578, 2744, 3430, 4802, 5156, 6445, 6860, 9023, 9604, 10312, 12005, 12890, 13720, 18046, 19208, 24010, 25780, 36092, 45115, 48020, 51560, 63161, 72184, 90230, 96040, 126322, 180460, 252644, 315805, 360920, 442127, 505288, 631610, 884254, 1263220, 1768508, 2210635, 2526440, 3094889, 3537016, 4421270, 6189778, 8842540, 12379556, 15474445, 17685080, 24759112, 30948890, 61897780, 123795560]

約数ペア:

[(1, 123795560), (2, 61897780), (4, 30948890), (5, 24759112), (7, 17685080), (8, 15474445), (10, 12379556), (14, 8842540), (20, 6189778), (28, 4421270), (35, 3537016), (40, 3094889), (49, 2526440), (56, 2210635), (70, 1768508), (98, 1263220), (140, 884254), (196, 631610), (245, 505288), (280, 442127), (343, 360920), (392, 315805), (490, 252644), (686, 180460), (980, 126322), (1289, 96040), (1372, 90230), (1715, 72184), (1960, 63161), (2401, 51560), (2578, 48020), (2744, 45115), (3430, 36092), (4802, 25780), (5156, 24010), (6445, 19208), (6860, 18046), (9023, 13720), (9604, 12890), (10312, 12005)]